slipshod (adj.)youdaoicibaDictYouDict[slipshod 词源字典]
1570s, "wearing slippers or loose shoes," from slip (v.) + shod "wearing shoes." Sense of "slovenly, careless" is from 1815, probably from the notion of appearing like one in slippers, or whose shoes are down at the heels.[slipshod etymology, slipshod origin, 英语词源]